rtfd/in/personal/server/index.rst
2019-08-13 15:23:13 +02:00

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ReStructuredText

Server
======
Hardware
--------
=== ================================
BHS KS-12
CPU Intel Xeon W3530 4c/8t @ 2.8 GHz
RAM 32 GB DDR3 ECC @ 1333 MHz
HDD 2 × 2 TB
WAN 100 Mbps /128
MAC 00:25:90:7b:d4:38
=== ================================
Network
-------
+-----+---------+-------------------------------+
| IP4 | address | 192.99.14.98 |
| +---------+-------------------------------+
| | gateway | 192.99.14.254 |
+-----+---------+-------------------------------+
| IP6 | address | 2607:5300:60:3f62::1 |
| +---------+-------------------------------+
| | gateway | 2607:5300:60:3fff:ff:ff:ff:ff |
+-----+---------+-------------------------------+
Rescue
------
.. code:: shell
ssh-keygen -R rwx.work
ssh-keygen -R 192.99.14.98
scp /home/user/.ssh/id_ecdsa.pub root@rwx.work:/root/.ssh/authorized_keys
scp /etc/bash.bashrc root@rwx.work:/etc/
Partitions
----------
.. code:: shell
parted
select /dev/sda
mktable gpt
mkpart boot 1 2
mkpart raid 2 2000399
toggle 1 bios_grub
select /dev/sdb
mktable gpt
mkpart boot 1 2
mkpart raid 2 2000399
toggle 1 bios_grub
q
.. code:: shell
mdadm --create /dev/md0 \
--level 0 --raid-devices 2 /dev/sd[ab]2
.. code:: shell
parted /dev/md0
mktable gpt
mkpart data 1 3966966
mkpart swap 3966966 4000523
q
.. code:: shell
mkswap --label swap \
-U d8ee4260-4652-7192-7bb3-ebbadeb835a7 \
/dev/md0p2
mkfs.ext4 -L data \
-U 46527192-7bb3-ebba-deb8-35a7e8606808 \
/dev/md0p1
Boot
----
.. warning:: no ESP boot available!
Prepare a grub.cfg
.. code:: shell
insmod biosdisk
insmod part_gpt
insmod mdraid1x
insmod ext2
insmod search
insmod squash4
insmod loopback
insmod linux
search --set data --fs-uuid 46527192-7bb3-ebba-deb8-35a7e8606808
lmp=/fs/up
sfs=filesystem.squashfs
loopback loop (${data})${lmp}/${sfs}
linux (loop)/vmlinuz \
boot=live \
elevator=deadline \
ip=frommedia \
live-media-path=${lmp} \
toram=${sfs}
initrd (loop)/initrd.img
boot
.. code:: shell
grub-mkstandalone \
--verbose \
--compress xz \
--format i386-pc \
--output core.img \
--themes "" \
boot/grub/grub.cfg=grub.cfg \
--fonts "" \
--locales "" \
--install-modules "\
biosdisk \
part_gpt \
mdraid1x \
ext2 \
search \
squash4 \
loopback \
linux \
"
.. todo:: move to public grub
.. code:: shell
grub-mkstandalone \
--verbose \
--compress xz \
--format x86_64-efi \
--output bootx64.efi \
--themes "" \
boot/grub/grub.cfg=grub.cfg
.. code:: shell
scp core.img root@rwx.work:
cp /usr/lib/grub/i386-pc/boot.img . \
/usr/lib/grub/i386-pc/grub-bios-setup \
--directory . /dev/sda
/usr/lib/grub/i386-pc/grub-bios-setup \
--directory . /dev/sdb
* debootstrap
* apt
* fstab /d
* systemd
* linux-image
* tops
* hardware
* completion
* network
* interfaces
* basics
* openssh-server fixes (sshd user, /run/sshd)
* live-boot
* root
* inception
* bridge
* grub-pc-bin
* apparmor
* unbound
* tree
* net.ipv4.ip_forward=1
* net.ipv6.conf.all.forwarding=1
* nftables
* nginx-extras
* root/user authorized_keys
* curl
* swap,swappiness
* enable nftables.service
* enable lxc.service
* sources.list file:/
* syslog-ng
* ssh on port 80
* domain certificate private key
* domain certificate bundle
* /etc/ssl/openssl.cnf tls 1.3 suites
* nginx configuration
* nginx in container
* nginx host sites
* /etc/bash.bashrc
* /etc/fstab (/d)
* /etc/locale.gen
* locale-gen
* /etc/resolv.conf
* /etc/apt/apt.conf
* /etc/apt/sources.list
* apt update
* apt upgrade
* live-boot
* update-initramfs ← update-initramfs.orig
* openssh-server
* parted
* squashfs-tools
* tree
* apt clean
* /etc/ssh/sshd_config
* mkdir /root/.ssh
* echo "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAICZAs76kQJ0/Et2NGzhxurK2wE0VhYsG9wl85iCmR9xH" > /root/.ssh/authorized_keys
* lxc
* /etc/network/interfaces.d/setup
.. warning:: inet6 dhcp hangs!
::
auto lo
iface lo inet loopback
iface lo inet6 loopback
auto br0
iface br0 inet static
address 10.0.0.254/24
bridge_fd 0
bridge_maxwait 0
bridge_ports enp1s0
bridge_stp on
iface br0 inet static
address 192.99.14.98/24
gateway 192.99.14.254
iface br0 inet6 static
address 2607:5300:60:3f62::1/64
gateway 2607:5300:60:3fff:ff:ff:ff:ff
.. warning::
reboot from container doesn't reload config file
/var/lib/lxc/config
::
lxc.include = /usr/share/lxc/config/common.conf
lxc.mount.entry = /d/mirrors/apt-mirror/debian deb none bind,create=dir,ro 0 0
lxc.start.auto = 1
lxc.net.0.type = veth
lxc.net.0.flags = up
lxc.net.0.link = br0
/var/lib/lxc/name/config
::
lxc.include = /var/lib/lxc/config
lxc.mount.entry = /d/d/buster d none bind,create=dir,rw 0 0
lxc.rootfs.path = dir:/var/lib/lxc/buster
lxc.net.0.veth.pair = buster
lxc.net.0.ipv4.address = 10.0.0.1/24
lxc.net.0.ipv4.gateway = 10.0.0.254
/etc/nftables.conf
::
#! /usr/sbin/nft --file
flush ruleset
table inet filter {
chain input {
type filter hook input priority 0; policy accept;
iifname "lo" accept
ip protocol icmp accept
ip6 nexthdr icmp accept
tcp dport ssh accept
tcp dport domain accept
tcp dport http accept
tcp dport https accept
}
chain forward {
type filter hook forward priority 0; policy accept;
}
chain output {
type filter hook output priority 0; policy accept;
}
}
table ip nat {
chain prerouting {
type nat hook prerouting priority 0; policy accept;
tcp dport 65001 dnat to 10.0.0.1:ssh
}
chain postrouting {
type nat hook postrouting priority 0; policy accept;
masquerade
}
}
Web
---
Configuration
^^^^^^^^^^^^^
* /etc/nginx/nginx.conf
::
load_module modules/ngx_http_headers_more_filter_module.so;
pid /run/nginx.pid;
user user;
worker_processes auto;
events {
multi_accept off;
worker_connections 512;
}
http {
# General
keepalive_timeout 60;
sendfile on;
server_tokens off;
tcp_nopush on;
tcp_nodelay on;
types_hash_max_size 2048;
# Names
server_name_in_redirect off;
server_names_hash_bucket_size 128;
# File types
include mime.types;
default_type application/octet-stream;
# Security
ssl_buffer_size 8k;
ssl_ciphers "ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ARIA256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ARIA128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256";
ssl_ecdh_curve "X448:X25519:P-521:P-384";
ssl_prefer_server_ciphers on;
ssl_protocols TLSv1.3 TLSv1.2;
ssl_session_cache shared:ssl_session_cache:16m;
ssl_session_tickets off;
ssl_session_timeout 15m;
ssl_stapling on;
ssl_stapling_verify on;
# Log
access_log /var/log/nginx/access.log;
error_log /var/log/nginx/error.log;
# Compression
gzip off;
# Misc
client_max_body_size 16m;
index index.html;
proxy_pass_request_body on;
proxy_pass_request_headers on;
proxy_redirect off;
# Headers
more_clear_headers Server;
# Includes
include sites-enabled/*;
}
Security
^^^^^^^^
* /etc/nginx/https.conf
::
listen 443 ssl http2;
listen [::]:443 ssl http2;
add_header Content-Security-Policy "default-src 'self'" always;
add_header Expect-CT "max-age=0, enforce" always;
add_header Referrer-Policy "no-referrer-when-downgrade" always;
add_header Strict-Transport-Security "max-age=31557600; includeSubDomains; preload" always;
add_header X-Content-Type-Options "nosniff" always;
add_header X-Frame-Options "SAMEORIGIN" always;
set $fp "";
set $fp "${fp} camera 'none';";
set $fp "${fp} microphone 'none';";
set $fp "${fp} payment 'none';";
add_header Feature-Policy "${fp}" always;
Sites
^^^^^
* /etc/nginx/sites-enabled/http
::
server {
listen 80 default_server;
listen [::]:80 default_server;
server_name _;
return 301 https://${host}${request_uri};
}
* /etc/nginx/sites-enabled/rwx.work
::
server {
include https.conf;
include rwx.work.conf;
server_name .rwx.work;
location / {
proxy_pass http://10.0.0.1/;
}
}
server {
include https.conf;
include rwx.work.conf;
server_name deb.rwx.work;
root /d/mirrors/apt-mirror/debian;
autoindex on;
}
server {
include https.conf;
include rwx.work.conf;
server_name docs.rwx.work;
root /d/projects/docs/out/docs;
}
server {
include https.conf;
include rwx.work.conf;
server_name todo.rwx.work;
root /d/projects/todo;
}
Certificate
^^^^^^^^^^^
* /etc/nginx/rwx.work.conf
::
ssl_certificate rwx.work.crt;
ssl_certificate_key rwx.work.key;
* /etc/nginx/rwx.work.key
* /etc/nginx/rwx.work.crt
::
-----BEGIN CERTIFICATE-----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Il/tKEM0Ok9CUcj1Ty1GdNt3gCLucC8eI22t3QstUla/wiMtoAWeydzi3dneIrQ7
SmJ6rfBIxVUXGUFKlsRVBPbFbDj9kEsIUY5pUfUnDYIYVCjqm1F+XGMgGt+nMkaV
exuI0QIDAQABo4ICaDCCAmQwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsG
AQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBRf3Sg57QsE
XePyTwCeSEZ7YyA0BDAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86jsoTBv
BggrBgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14My5s
ZXRzZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14My5s
ZXRzZW5jcnlwdC5vcmcvMB8GA1UdEQQYMBaCCioucnd4LndvcmuCCHJ3eC53b3Jr
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OOA0WMwsL9Ly8AAbk1c41mJOKOuvv2+XzVY/NPU3uZCWOXlhqtWyusw=
-----END CERTIFICATE-----
-----BEGIN CERTIFICATE-----
MIIEkjCCA3qgAwIBAgIQCgFBQgAAAVOFc2oLheynCDANBgkqhkiG9w0BAQsFADA/
MSQwIgYDVQQKExtEaWdpdGFsIFNpZ25hdHVyZSBUcnVzdCBDby4xFzAVBgNVBAMT
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-----END CERTIFICATE-----